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在線粒度儀器在含能材料方面的應(yīng)用（轉(zhuǎn)載）

在線粒度儀器在含能材料方面的應(yīng)用，深圳聯(lián)系人：肖先生，

注：本文章為轉(zhuǎn)載，旨在討論探頭式在線粒度儀，在線濁度儀的應(yīng)用，如有冒犯作者，請(qǐng)聯(lián)系本公司刪除，謝謝！

FOX-7在DMSO-H2O二元混合體系中的結(jié)晶研究

Study on Crystallization of FOX-7 in DMSO-H2O Binary Mixed Solvents
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中文摘要:
      為獲得不同結(jié)晶條件對(duì)1,1-二氨基-2,2-二硝基乙烯（FOX-7）晶體質(zhì)量和形貌的影響規(guī)律，實(shí)現(xiàn)對(duì)其晶體形態(tài)的控制。使用CrystalSCAN多通道結(jié)晶儀，采用濁度法測(cè)定了20~95℃，F(xiàn)OX-7在二甲基亞砜（DMSO）、水(H2O)及其二元混合溶劑中的溶解度以及在DMSO/H2O=2:1（體積比）混合溶劑中的介穩(wěn)區(qū)寬度。采用降溫法研究了FOX-7在多種結(jié)晶條件下的晶體形態(tài)，并測(cè)試了晶體的機(jī)械感度和熱性能。結(jié)果表明：FOX-7的溶解度隨著溫度的升高和二元混合溶劑中DMSO含量的增加而增加；介穩(wěn)區(qū)寬度隨著溫度的升高、降溫速率的減小和攪拌速率的增大而變窄。降溫結(jié)晶過(guò)程中，F(xiàn)OX-7的晶體形態(tài)顯著受溶劑比例、結(jié)晶起始溫度和降溫速率的影響，在50~80℃，降溫速率不低于2℃?min-1的條件下，可得到長(zhǎng)徑比幾乎相同、形貌規(guī)則的立方塊狀高品質(zhì)FOX-7晶體，并且粒徑在20~150μm內(nèi)可控。同時(shí)，F(xiàn)OX-7的晶體質(zhì)量越好，晶體顆粒密度越大，熱分解溫度越高；FOX-7的撞擊感度都較低，且受顆粒形貌影響小，但摩擦感度受顆粒形貌影響較大，其中長(zhǎng)柱狀晶體的摩擦感度小、片狀晶體的大。
中文關(guān)鍵詞: 含能材料  1,1-二氨基-2,2-二硝基乙烯（FOX-7）  結(jié)晶
英文摘要:
      In order to obtain the influence of different crystallization conditions on the crystal quality and morphology of 1,1-diamino-2,2-dinitroethylene (FOX-7) crystals and realized the control of crystal characteristics. The solubility of FOX-7 in dimethyl sulfoxide (DMSO), water (H2O) and its binary mixed solvent in the range of 20~95°C and metastable zone width of binary solvent mixtures DMSO/H2O=2:1 (in volume ratio) were measured by using the CrystalSCAN multi-channel crystallizer. Crystal characteristics of FOX-7 under various crystallization conditions were investigated by cooling method, and mechanical sensitivity and thermal performance of FOX-7 were tested. The results showed that the solubility of FOX-7 increased with the increase of temperature and DMSO content in binary solvent mixtures; the width of metastable zone narrowed with increased temperature, decreased cooling rate and upgraded stirring rate. In the process of cooling crystallization, the crystal characteristics of FOX-7 is significantly affected by solvent ratio, crystallization starting temperature and cooling rate. In the range of 50~80°C, when the cooling rate is higher than 2°C?min-1, the cube-like high-quality FOX-7 crystal with almost the same aspect ratio and regular morphology was obtained, and particle diameter was controllable in the range of 20~150μm. And the better crystal quality of FOX-7, the higher crystal density and the higher thermal decomposition temperature. Impact sensitivity of FOX-7 is low and little affected by the crystal morphology, however friction sensitivity is affected more by particle morphology, the frictional sensitivity value of columnar-like crystals is smallest and that of plate-like crystals is largest.
英文關(guān)鍵詞: Explosive  1,1-diamino-2,2-dinitroethylene (FOX-7)  Crystallize
DOI：10.11943/CJEM2018044
投稿日期:2018-02-12
后修改日期：2018-05-18
網(wǎng)絡(luò)出版日期：2018-05-09
書版出版日期：2018-08-23
基金項(xiàng)目:國(guó)家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）
引用文獻(xiàn):劉璐,劉才林,楊海君,郝世龍,周小清,李洪珍,等.FOX-7在DMSO-H2O二元混合體系中的結(jié)晶研究[J].含能材料,2018,26(8):638~644

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